What does RPBM stand for?
RPBM stands for "Room and Pillar Basic Method"
How to abbreviate "Room and Pillar Basic Method"?
"Room and Pillar Basic Method" can be abbreviated as RPBM
What is the meaning of RPBM abbreviation?
The meaning of RPBM abbreviation is "Room and Pillar Basic Method"
What does RPBM mean?
RPBM as abbreviation means "Room and Pillar Basic Method"